Find and open File Explorer in Windows 10 and Windows 11, and customize Quick access by pinning and removing files and folders.

Keys with an Fn key or F Lock provide two sets of commands for many keys. This includes the top row of standard function keys (F1–F12). Standard commands are labeled on the front of the keys (such as F3).

Download information. The following files are available for download from the .NET Download site: Download the Microsoft .NET Framework 4.8 offline installer package now.

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To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.

How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.

How to lock cells in Excel to protect your data. You can also unlock a range of cells and grant permissions to others to edit.

Learn how to find the serial number on your Surface so you can register your product or request service.

Learn how to use Remote Desktop in Windows. On your Windows, Android, or iOS device: Open the Remote Desktop app (available for free from Microsoft Store, Google Play, and the Mac App Store), and add the name of the PC that you want to connect to (from Step 1). Select the remote PC name that you added, and then wait for the connection to complete.

How to combine text or data from two or more cells into one cell in Excel.